How does friction affect energy transformation
2 answers:
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Answer:
11.4
Explanation:
Step 1: Given data
- Concentration of the base (Cb): 0.300 M
- Basic dissociation constant (Kb): 1.8 × 10⁻⁵
Step 2: Write the dissociation equation
NH₃(aq) + H₂O(l) ⇄ NH₄⁺(aq) + OH⁻(aq)
Step 3: Calculate the concentration of OH⁻
We will use the following expression.
Step 4: Calculate the pOH
We will use the following expression.
Step 5: Calculate the pH
We will use the following expression.
Answer:
in 3 mole of
Explanation:
It is clear that in the given of
have
of
Therefore 3 moles of will have
of
Since 1 ion of anything is equivalent to
Therefore 3 moles of will have
of
Which is equivalent to
Thus 3 moles of gives
of
.